Improvement in steam-pumps



UNITED STATES PATENT OFFICE.

A. W. TODD, OF CHICAGO, -ILLINOIS.

IMPROVEMENT lN STEAM-PUMPS.

Specification forming part of Letters Patent No. 48,853, dated July 18, 1865.

To all whom it may concern.- 1

Be it known that I, A. W. TODD, of the city of Chicago, county of Cook, and State of Illinois, have invented a new and useful ImprovementinPumpsforSupplyingLocomotive-Tenders and other Reservoirs with Water; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters ot' reference marked thereon, making part of this specification, in which- Figure l is a plan or top view of my pump,

and Fig. 2 a sectional elevation thereof.

Similar letters and gures of reference indicate like parts.

This invention consists in the combination and arrangement of the steam-cylinder, its piston, levers 4 4, valve-rod E, inlet-pipe J, pipe L, cross-head C, rod H, pipe P, fulcrum M, and ropes l 1, whereby the tender of a locomotiveengine or other reservoir may be lled with water or other liquid by one stroke of the piston of the said steam-cylinder.

The inlet-pipe J (indicated by dotted lines) commences about midway on the outside, and runs down and turns underneath the cylinder K to an opening, No. 8, in the center of the bottom of it, whichopening is covered with a valve, I. The upper head, It, of the cylinder K has two stufting-boxes, S S, with their respective pistou-rods D and E. D has its head T and opening O (see dotted lines) and crosshead C secured by nuts at c.

The rod H and pipe L are secured to the outside of. the cylinder K, and answer as guiderods to thc cross-head C.

The rod E works loosely through the crosshead C. The upper end of the rod E has a round weight, W, fastened on it, which causes the valve on the lower end of it to close the openingO in the piston-head T, in which position, the piston being above the water, steam is let on through the flexible pipe P, the inner end of which is permanently attached to an opening in the upper head of the cylinder K. The pipe P should be long enough for the outer end to reach the locomotive when stopping on either side at its usual distance from the well.

A suitable fixture on the top of the locomotive and at the end of the pipe will enable the person in attendance to readily attach and detach the pipe. By this pipe steam is communicated to the cylinder K above the piston, whereby the water in the cylinder is forced out through the opening V, the valve I having closed, and up through the pipe L into the tender. Each discharge of the contents ot the cylinder is expected to be sufficient to supply one tender. When the steam -is cnt ofi" the pressure of the water in the pipe L and the pressure through the pipe J from without, acting in concert, will force its way through the valves or openings I and O and lill the cylinder from above mud and sand. The steam being cut ofi, and the piston being left near the bottom of the cylinder, and the. Water having again filled the cylinder through the openings, as above described, and the levers 4 4 being in the position as indicated by the dotted lines, haveropessuspended from theirouterends, (not seen in the drawings,) the pistou isdrawn above the water by seizing the said ropes and by keeping the rod E a little ahead ot' the piston, so as to keep the hole O open, so that all the water may pass freely below the piston, at which time the rod E is released, andthe weight I will canse it to drop the valve on the lower end down upon the opening O below it, when the cylinder is again ready to receive the steam, which operation is represented by the levers 4 4, fulcrnni M, and ropes l 1, which ropes are secured to rods D and E and levers4 4 in any suitable manner. As the piston will stop at about the top edge of the opening V the water in the pipe L will pass -through the opening O on4 its way back the moment the steam is cut off', thus avoiding freezing usually attending tanks above ground.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, ls-

The combination and arrangement of the cylinder K, levers 4 4, piston T, valve-rod E, inlet J, pipe L, cross-head C, rod H, pipe P,

fulcrum M, and ropes l l, substantially upon l the principles and in the manner herein set forth.

A. W. TODD.

Witnesses:

J Ames S'rANFoRD, G. W. STANFORD. 

